Ключевые слова: 3d, 4g, 5g, antenna, antennae, background, blue, broadcast, broadcasting, business, cell, cellular, city, communication, connection, cyberspace, datum, digital, energy, equipment, frequency, global, gsm, high, illustration, industrial, industry, information, internet, mast, metal, mobile, mobile phone, network, phone, radio, signal, sky, station, structure, technology, telecom, telecommunication, telephone, tower, transmission, transmitter, wireless,